PD 476-3:2012

Foreword
0 Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification procedures for end-use application
  rules from test results
5 Influence on classification of changes to a product
  and/or to an end-use application parameter
6 End-use application classification report
Annexes
Annex A (informative) - Roofing covering product
        groups
Annex B (informative) - Example of a typical
        classification report tested to
        BS 476-3:2004
Bibliography

Defines a methodology for generating new classification rules for roof coverings tested in accordance with BS 476-3:1958 and BS 476-3:2004, which simplifies the specification of a roof covering in its end-use application as part of a roofing system.

This Published Document sets out a methodology for generating new classification rules for roof coverings tested in accordance with BS 476-3:1958 and BS 476-3:2004, which simplifies the specification of a roof covering in its end-use application as part of a roofing system. The document also considers the possible influences on the classification of single or multiple changes to the roof covering material and/or construction of the tested roofing system.

NOTE Applying the results of tests to an actual end-use application often requires specialist knowledge. This application is generally simplified if the tested roof covering/roofing system can be given a classification based upon the results of test(s) which is easily related to the end-use.

Where rules already exist, they are presented in Clause 4 and Clause 5.